A few days ago an Android 2.3 Gingerbread firmware for the AT&T branded Samsung Captivate leaked on the Internet.

Today, Gingerbread firmware for two U.S. variants of the Galaxy S have leaked on the Internet. One of them is the T-Mobile Galaxy S 4G, and the other one is the Sprint’s Epic 4G. This time also, the credit for the leak goes to the folks over at SamFirmware.com.

Galaxy S 4G owners over at XDA forums, who flashed this firmware on their phone, are reporting an improvement in performance and stability of the phone. There are also reports of huge improvement in battery life, with a little bit of tweaking like freezing all the bloat ware etc.

The Epic 4G Gingerbread leak solves most of the graphical issues which was present in the previous leaked Gingerbread firmware. There is also an improvement in performance compared to the previous leak. However, there is a lag of 2-3 seconds while rotating the phone from portrait to landscape mode or vice-versa.

Epic 4G users are also reporting an improvement in network reception, and data transfer speed. This leaked firmware also includes the latest version of Swype (v3), along with TeleNav navigation app.

Samsung Galaxy S 4G owners should head over to this link to download the leaked firmware, while Epic 4G owners need to click here.